Metal shingle and the like



Jan. 29, 1929. 1,700,138

T. E. MURRAY, JR

METAL SHINGLE AND THE LIKE Filed Nov. 14, 1924 E G F C mu r ll- H MN Ill IIJIHIJ 63 '7 J anowtoz 72001035. Murm /Ji' MWMMQ anew s. mmaAY,.13.,

PATENT OFFICE.

o1" :anooxmm, NEW YORK.

METAL SHINGLE AND THE LIKE.

- Application filed November Shingles of metal and particularly ofcopper are known, and it is the purpose of the present invention toprovide certain improvements therein, described in detail hereinafter.

The accompanying drawings illustrate shingles embodying my invention.

., Fig. 1 is a perspective view of a single shingle; v i Fig. 2 is across-section of an overlapping horizontal joint between two shingles,

Fig. 3 is a section on the line 3.3. of Fig. 1; Fig. 4'is a perspectiveof part ofa modified form of shingle.

e The shingle illustrated has a body portion A with a perpendicularlower flange B bent backward to form a flange C which hooks under aportion of the next lower shingle in the manner indicated in Fig. 2. Atits upper edge the body of the shingle is bent perpendicularly upwardand forward to provide a portion 1) for engagementby the flange C of thenext shingle, and then perpendicularly upward to form a flange E andbackward to form a portion F by which-it is attached to the roofsupports below by means of nails passing through holes G.- At one sideedge the metal is bent over the top to form a flange H for engagementwith a similar flange on the underside of the adjacent edge of the nextshingle so as to form locked vertical. joints (that is in the verticalplane extending up and down the slope of the roof).

I propose to corrugate such shingles in whole or in part and eitherbefore the sheets are bent into shingle shape or afterward. Thecorrugations extend in the direction from top to bottom of the shingleand of the perpendicular flanges. On the body A which is exposed in use,they prese'nta considerable 40 improvement in appearance compared with aflat surface, giving the efi'ect of asoft tinted surface instead of avery bright one. Also thecorrugation's serve to stiffen the'shinglethroughout. This is; very important to the manufacturer, not only ineconomizing metal, but in making it possible to use certain metals whichare otherwise ill adapted practically for such use.

For shingles stifi'ened in the-way described, so it is possible to use.sheets of extremely thin metal. With non-corrodible metals likecopper,,the only limitation on the thinness of the sheets used in makingthe shingles is the stiif ness required. By corrugating the sheets,

Ms. thinner stock may be used. The corrugations may be so shallow thatthe wavy line of Fig.

14, 1924. Serial no. 749,822.

. 3 will be very little longer than a straight. line the cross-sectionor weight of metal for a shingle of a given width being actually lessthan is required for the making of a shingle without corrugations.

The corrugations'may be applied alone to the body portion of theshingle,or they may be applied alone to one or more of the per pendicularportions B and E. In Fig. .4 I have shown a shingle of which only theperpendicular flange B at lower edge is corrugated, the body J and theflange K being flat. The corrugatingof the lower flange B has certainpeculiar advantages whether the corrugations be extended to the otherparts of the shingle or not. Efforts have been made to'produce a shingleof deposited cop per as distinguished from rolled sheets; the depositedcopper being considerably cheaper weight for weight. But suchdepositedsheets are comparatively soft and weak so that they bend easily. Theflange B has to have a certain stiffness in order to preserve its shapeunder the strains of handling and laying on the roof. With depositedcopper of the minimum thickness which it is possible to use for the bodyand other parts of the shingle, it has been necessary to make'the lowerflange comparatively short in order-.thatjt shall be stifl enough tohold its shape. But it is very desirable to have the flange B of greaterheight, say equal to that of the butt end of ordinary wooden shingles,so as to give an agreeable relief eflect to a roof of these'shingles.The corrugating of the flange as indicated inFig. 4 makes it possible toincrease the height of this flange without loss in stiflness, whilesecuring the economy involved in the use of deposited copper or othervery thin metal.

Speaking roughly the flange should have a depth of about 1 inch whichmay be several times the thickness of the metal, as illustrated),which-.cannotbe satisfactorily done with deposited copper unless theflange be stiflened'. And while I prefer to stiflen the flange by meansof corrugations as illustrated. yet my invention contemplates stifieningthe flange in various other ways.

dinary pair of corrugating dies or by any other usual or suitablemethod. The lower edge alone of the sheet may be corrugated K. Or thepart B alone ma be corrugated (after bonding to the perpen icularposition) The corrugation may be eflected in an 'orbetween diescorresponding in Width to said part B.

Though I have described with great particularity of detail certainembodiments of my invention, yetit is not. to be understood therefromthat the invention is restricted to the particular embodimentsillustrated. Various modifications may be made by those skilled in. theart without departing from the invention as defined in the following ofthe metal and the body of which flange is stiff-er against bendingtoward the plane of the shingle than the flat metal from which theshingle and flange are formed.

o. A shingle made of a sheet of comparatively soft and weak depositedcopper of the minimum thickness which it is possible to use for thebody, havin r a perpendicular flange at its lower edge the depth ofwhich is several times'thethickness of the metal, the body of theshingle being flat and the lower flange being bent to form corrugationsextending in the vertical direction so as to be stiffer than the body.

In witness whereof, I have hereunto si rned my name.

V, THOMAS E. MURRAY, JR.

